$$\frac{\text{Volume of RBCs}}{\text{Total Blood Volume}} \times 100$$

Question 1

Which plasma protein is the primary contributor to the osmotic pressure of blood?

Accepted Answer

Albumin

Question 2

A patient’s hematocrit is measured at 47%. According to normal ranges, this value is most likely from which group?

Accepted Answer

A healthy adult man

Question 3

Which of the following best describes the structural features of erythrocytes that make them efficient for gas transport?

Accepted Answer

Biconcave discs, flexible membrane, and lack of nucleus

Question 4

Which organ is responsible for producing the majority of erythropoietin (EPO) in the body?

Accepted Answer

Kidneys

Question 5

Platelets are not considered true cells because:

Accepted Answer

They are cell fragments derived from megakaryocytes

Question 6

Which of the following leukocytes are classified as granulocytes?

Accepted Answer

Neutrophils, eosinophils, and basophils

Question 7

A blood sample agglutinates with Anti-A and Anti-B antibodies but not with Anti-Rh. What is the blood type?

Accepted Answer

AB-

Question 8

Which blood type is considered the universal donor and why?

Accepted Answer

O-, because it lacks A, B, and Rh antigens

Question 9

In a transfusion reaction, what component in the recipient’s blood attacks the donor’s red blood cells?

Accepted Answer

Antibodies in the recipient’s plasma

Question 10

Which leukocyte is primarily responsible for mounting an immune response by direct cell attack or via antibodies?

Accepted Answer

Lymphocyte

Question 11

A patient with blood type B- can safely receive blood from which of the following types?

Accepted Answer

B-, O-

Question 12

Which of the following is the correct formula for calculating hematocrit percentage?

Accepted Answer

$$\frac{	ext{Volume of RBCs}}{	ext{Total Blood Volume}} 	imes 100$$

Question 13

Which leukocyte releases histamine and other mediators of inflammation?

Accepted Answer

Basophil

Question 14

A newborn is at risk for hemolytic disease if the mother is Rh- and the baby is Rh+. What is the underlying cause?

Accepted Answer

The mother’s antibodies attack the baby’s Rh+ red blood cells

Question 15

Which of the following is NOT found in the buffy coat of spun blood?

Accepted Answer

Erythrocytes

Question 16

Which leukocyte is a phagocyte that develops into macrophages in tissues?

Accepted Answer

Monocyte

Question 17

A patient’s blood sample shows clumping with Anti-B but not with Anti-A or Anti-Rh. What is the blood type?

Accepted Answer

B-

Question 18

Which of the following statements about plasma is correct?

Accepted Answer

Plasma is 90% water by volume

Question 19

Which blood type can safely receive blood from all other ABO types?

Accepted Answer

AB+

Question 20

Which leukocyte is most effective at killing parasitic worms and is involved in allergy and asthma responses?

Accepted Answer

Eosinophil

Blood: Structure, Function, and Typing – Study Guide for Anatomy & Physiology

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